<template>
	<view class="container">
		<!-- 搜索框 -->
		<view class="search">
			<search tips="搜索商品" @event="$navTo('pages/search/index')" />
		</view>

		<!-- 一级分类 -->
		<primary
			v-if="setting.style == PageCategoryStyleEnum.ONE_LEVEL_BIG.value || setting.style == PageCategoryStyleEnum.ONE_LEVEL_SMALL.value"
			:display="setting.style" :list="list" />

		<!-- 二级分类 -->
		<secondary v-if="setting.style == PageCategoryStyleEnum.TWO_LEVEL.value" :list="list" />

		<!-- 分类+商品 -->
		<commodity v-if="setting.style == PageCategoryStyleEnum.COMMODITY.value" ref="mescrollItem" :list="list"
			:setting="setting" />
	</view>
</template>

<script>
	import MescrollCompMixin from '@/uni_modules/mescroll-uni/components/mescroll-uni/mixins/mescroll-comp'
	import {
		setCartTabBadge
	} from '@/core/app'
	import SettingKeyEnum from '@/common/enum/setting/Key'
	import {
		PageCategoryStyleEnum
	} from '@/common/enum/store/page/category'
	import SettingModel from '@/common/model/Setting'
	import * as CategoryApi from '@/api/category'
	import Search from '@/components/search'
	import Primary from './components/primary'
	import Secondary from './components/secondary'
	import Commodity from './components/commodity'

	// 最后一次刷新时间
	let lastRefreshTime;

	export default {
		components: {
			Search,
			Primary,
			Secondary,
			Commodity
		},
		mixins: [MescrollCompMixin],
		data() {
			return {
				// 枚举类
				PageCategoryStyleEnum,
				// 分类列表
				list: [],
				// 分类模板设置
				setting: {},
				// 正在加载中
				isLoading: true
			}
		},

		/**
		 * 生命周期函数--监听页面加载
		 */
		onLoad() {
			// 加载页面数据
			this.onRefreshPage()
		},

		/**
		 * 生命周期函数--监听页面显示
		 */
		onShow() {
			// 每间隔5分钟自动刷新一次页面数据
			const curTime = new Date().getTime()
			if ((curTime - lastRefreshTime) > 5 * 60 * 1000) {
				this.onRefreshPage()
			}

			// 每次进点餐都获取新数据
			setTimeout(() => {
				if (this.$refs.mescrollItem) {
					this.$refs.mescrollItem.getCartList(); //购物车列表
					this.$refs.mescrollItem.getStoreInfo(); //商城信息
				}
			}, 100)

			if (uni.getStorageSync('indexShopId')) {
				setTimeout(() => {
					this.$navTo('pages/goods/detail?goodsId=' + uni.getStorageSync('indexShopId'))
					uni.setStorageSync('indexShopId', null)
				}, 1000)
			}
		},

		methods: {

			// 刷新页面
			onRefreshPage() {
				// 记录刷新时间
				lastRefreshTime = new Date().getTime()
				// 获取页面数据
				this.getPageData()
				// 更新购物车角标
				setCartTabBadge()
			},

			// 获取页面数据
			getPageData() {
				const app = this
				app.isLoading = true
				Promise.all([
						// 获取分类模板设置
						// 优化建议: 可以将此处的false改为true 启用缓存
						SettingModel.data(false),
						// 获取分类列表
						CategoryApi.list()
					])
					.then(result => {
						// 初始化分类模板设置
						app.initSetting(result[0])
						// 初始化分类列表数据
						app.initCategory(result[1])
					})
					.finally(() => app.isLoading = false)
			},

			/**
			 * 初始化分类模板设置
			 * @param {Object} result
			 */
			initSetting(setting) {
				this.setting = setting[SettingKeyEnum.PAGE_CATEGORY_TEMPLATE.value]
			},

			/**
			 * 初始化分类列表数据
			 * @param {Object} result
			 */
			initCategory(result) {
				this.list = result.data.list
			},

		},

		/**
		 * 设置分享内容
		 */
		onShareAppMessage() {
			const app = this
			return {
				title: _this.templet.shareTitle,
				path: '/pages/category/index?' + app.$getShareUrlParams()
			}
		},

		/**
		 * 分享到朋友圈
		 * 本接口为 Beta 版本，暂只在 Android 平台支持，详见分享到朋友圈 (Beta)
		 * https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/share-timeline.html
		 */
		onShareTimeline() {
			const app = this
			return {
				title: _this.templet.shareTitle,
				path: '/pages/category/index?' + app.$getShareUrlParams()
			}
		}

	}
</script>

<style>
	page {
		background: #fff;
	}
</style>
<style lang="scss" scoped>
	// 搜索框
	.search {
		position: fixed;
		top: var(--window-top);
		left: var(--window-left);
		right: var(--window-right);
		z-index: 9;
	}
</style>